Table 4 Multivariate logistic regression analysis for symptomatic radiation pneumonitis (≥ Grade 2)

1.768 (1.056–3.104)

0.0358

1.795 (1.071–3.160)

0.0315

2.034 (1.196–3.710)

0.0122

2.270 (1.309–4.287)

0.0057

2.621 (1.482–5.055)

0.0018

2.037 (1.175–3.827)

0.0168

2.098 (1.192–4.054)

0.0164

2.451 (1.344–5.011)

0.0071

2.900 (1.525–6.228)

0.0028

3.627 (1.852–7.960)

0.0005

1.058 (0.618–1.718)

0.823

1.059 (0.615–1.702)

0.822

1.118 (0.650–1.775)

0.650

1.143 (0.666–1.791)

0.578

1.116 (0.640–1.742)

0.652

2.535 (1.422–4.935)

0.0030

2.421 (1.360–4.690)

0.0047

2.957 (1.586–6.188)

0.0016

3.771 (1.897–8.671)

0.0005

4.996 (2.392–12.299)

<0.0001

2.467 (1.384–4.792)

0.0040

2.376 (1.337–4.168)

0.0054

2.913 (1.558–6.096)

0.0019

4.085 (1.984–9.865)

0.0005

6.114 (2.726–16.873)

<0.0001

2.810 (1.551–5.621)

0.0015

2.788 (1.532–5.606)

0.0017

3.363 (1.756–7.632)

0.0008

4.319 (2.118–10.368)

0.0003

5.707 (2.676–14.706)

<0.0001

0.758 (0.378–1.351)

0.383

0.901 (0.489–1.571)

0.722

0.869 (0.491–1.492)

0.617

3.615 (1.893–7.836)

0.0003

1.906 (1.154–3.270)

0.0138

3.950 (2.042–8.746)

0.0002